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Species-specific identification of microsporidia in stool and intestinal biopsy specimens by the polymerase chain reaction.
Eur J Clin Microbiol Infect Dis. 1997 May; 16(5):369-76.EJ

Abstract

In view of the increasing number of cases of human microsporidiosis, simple and rapid methods for clear identification of microsporidian parasites to the species level are required. In the present study, the polymerase chain reaction (PCR) was used for species-specific detection of Encephalitozoon cuniculi. Encephalitozoon hellem, Encephalitozoon (Septata) intestinalis, and Enterocytozoon bieneusi in both tissue and stool. Using stool specimens and intestinal biopsies of patients infected with Enterocytozoon bieneusi (n = 9), Encephalitozoon spp. (n = 2), and Encephalitozoon intestinalis (n = 1) as well as stool spiked with spores of Encephalitozoon cuniculi and Encephalitozoon hellem and tissue cultures of Encephalitozoon cuniculi and Encephalitozoon hellem, three procedures were developed to produce PCR-ready DNA directly from the samples. Specific detection of microsporidian pathogens was achieved in the first PCR. The subsequent nested PCR permitted species determination and verified the first PCR products. Without exception, the PCR assay confirmed electron microscopic detection of Enterocytozoon bieneusi and Encephalitozoon intestinalis in stool specimens and their corresponding biopsies and in spiked stool samples and tissue cultures infected with Encephalitozoon cuniculi and Encephalitozoon hellem. Moreover, identification of Encephalitozoon spp. could be specified as Encephalitozoon intestinalis. Whereas standard methods such as light and transmission electron microscopy may lack sensitivity or require more time and special equipment, the PCR procedure described facilitates species-specific identification of microsporidian parasites in stool, biopsies, and, probably, other samples in about five hours.

Authors+Show Affiliations

Section of Parasitology, Bernard Nocht Institute for Tropical Medicine, Hamburg, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

9228477

Citation

Kock, N P., et al. "Species-specific Identification of Microsporidia in Stool and Intestinal Biopsy Specimens By the Polymerase Chain Reaction." European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology, vol. 16, no. 5, 1997, pp. 369-76.
Kock NP, Petersen H, Fenner T, et al. Species-specific identification of microsporidia in stool and intestinal biopsy specimens by the polymerase chain reaction. Eur J Clin Microbiol Infect Dis. 1997;16(5):369-76.
Kock, N. P., Petersen, H., Fenner, T., Sobottka, I., Schmetz, C., Deplazes, P., Pieniazek, N. J., Albrecht, H., & Schottelius, J. (1997). Species-specific identification of microsporidia in stool and intestinal biopsy specimens by the polymerase chain reaction. European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology, 16(5), 369-76.
Kock NP, et al. Species-specific Identification of Microsporidia in Stool and Intestinal Biopsy Specimens By the Polymerase Chain Reaction. Eur J Clin Microbiol Infect Dis. 1997;16(5):369-76. PubMed PMID: 9228477.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Species-specific identification of microsporidia in stool and intestinal biopsy specimens by the polymerase chain reaction. AU - Kock,N P, AU - Petersen,H, AU - Fenner,T, AU - Sobottka,I, AU - Schmetz,C, AU - Deplazes,P, AU - Pieniazek,N J, AU - Albrecht,H, AU - Schottelius,J, PY - 1997/5/1/pubmed PY - 1997/5/1/medline PY - 1997/5/1/entrez SP - 369 EP - 76 JF - European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology JO - Eur J Clin Microbiol Infect Dis VL - 16 IS - 5 N2 - In view of the increasing number of cases of human microsporidiosis, simple and rapid methods for clear identification of microsporidian parasites to the species level are required. In the present study, the polymerase chain reaction (PCR) was used for species-specific detection of Encephalitozoon cuniculi. Encephalitozoon hellem, Encephalitozoon (Septata) intestinalis, and Enterocytozoon bieneusi in both tissue and stool. Using stool specimens and intestinal biopsies of patients infected with Enterocytozoon bieneusi (n = 9), Encephalitozoon spp. (n = 2), and Encephalitozoon intestinalis (n = 1) as well as stool spiked with spores of Encephalitozoon cuniculi and Encephalitozoon hellem and tissue cultures of Encephalitozoon cuniculi and Encephalitozoon hellem, three procedures were developed to produce PCR-ready DNA directly from the samples. Specific detection of microsporidian pathogens was achieved in the first PCR. The subsequent nested PCR permitted species determination and verified the first PCR products. Without exception, the PCR assay confirmed electron microscopic detection of Enterocytozoon bieneusi and Encephalitozoon intestinalis in stool specimens and their corresponding biopsies and in spiked stool samples and tissue cultures infected with Encephalitozoon cuniculi and Encephalitozoon hellem. Moreover, identification of Encephalitozoon spp. could be specified as Encephalitozoon intestinalis. Whereas standard methods such as light and transmission electron microscopy may lack sensitivity or require more time and special equipment, the PCR procedure described facilitates species-specific identification of microsporidian parasites in stool, biopsies, and, probably, other samples in about five hours. SN - 0934-9723 UR - https://www.unboundmedicine.com/medline/citation/9228477/Species_specific_identification_of_microsporidia_in_stool_and_intestinal_biopsy_specimens_by_the_polymerase_chain_reaction_ L2 - http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=9228477.ui DB - PRIME DP - Unbound Medicine ER -